@misc{indiciaeee017fc1beea,
  title = {Oil and gas fields of the State of Wyoming},
  author = {W. G. Pierce and Jane Hanna and R.M. Girard},
  year = {1944},
  doi = {10.3133/ofr4459},
  url = {https://pubs.usgs.gov/publication/ofr4459},
  note = {Source identifier: ofr4459}
}